The Garmin Forerunner 935 GPS Multisport Watch, only weighing 49g, is an advanced comfortable running and multisport watch, which you can wear all day. Provides elevation changes with a built-in barometer; altimeter and electronic compass help you keep your bearings. Evaluates your training status to indicate if you\\\'re undertraining or overdoing it and offers additional performance monitoring features. Provides advanced dynamics for running, cycling and swimming, including ground contact time balance, stride length, vertical ratio and more. Overall this premium GPS running/triathlon watch helps you fine-tune your training and recovery to be a better athlete. Outlast your longest workout with a battery you can rely on, even in the middle of an iron-distance triathlon or ultramarathon. Forerunner 935 features up to 24 hours of battery life in GPS mode and up to 60 hours in UltraTrac battery saver mode. When you\\\'re just using it as your day-to-day smartwatch, you\\\'ll get up to 2 weeks from a single charge. Key Features Battery Life - Up to 2 weeks in watch mode, up to 24 hours in GPS mode, up to 50 hours in UltraTrac™ mode (with wrist-based heart rate), or up to 60 hours in UltraTrac™ mode (without wrist-based heart rate). Elevation Changes - Provides elevation changes with a built-in barometer; altimeter and electronic compass help you keep your bearings. Evaluates Training Status - Evaluates your training status to indicate if you\\\'re undertraining or overdoing it and offers additional performance monitoring features. Advanced Dynamics2 - Provides advanced dynamics2 for running, cycling and swimming, including ground contact time balance, stride length, vertical ratio and more. Please be aware that this item is not available on Cycle to Work Schemes. Technology Buying Guide